Home / 19,661,421.70-29,471,671.10-11,012,842.72

Finding the Fourth Proportional to 19,661,421.70, 29,471,671.10 and 11,012,842.72

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Solution

The fourth proportional to 19,661,421.70, 29,471,671.10 and 11,012,842.72 is: 16,507,803.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661,421.70 : 29,471,671.10 = 11,012,842.72 : x
  2. Step 2: Convert to fraction form
    19,661,421.70/29,471,671.10 = 11,012,842.72/x
  3. Step 3: Cross multiply
    19,661,421.70x = 29,471,671.10 × 11,012,842.72
  4. Step 4: Simplify right side
    19,661,421.70x = 324,566,878,372,511.06
  5. Step 5: Solve for x
    x = 324,566,878,372,511.06/19,661,421.70
  6. Step 6: Final answer
    x = 16,507,803.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.